Defensive publication

ABSTRACT

APPARATUS FOR CONTROLLING THE GAS SUPPLIED FOR GLASSBLOWING, WHEREIN THE GLASSBLOWER IS ISOLATED FROM THE GLASS APPARATUS BEING WORKED UPON, PARTICULARLY USEFUL WHEN WORKING UPON A GLASS APPARATUS CONTAINING A TOXI PRODUCT. THE APPARATUS INCLUDES A VALVE CHAMBER CONNECTED TO A PRESSURIZED GAS SUPPLY AND THE APPARATUS BEING WORKED UPON, AND A VALVE MEMBER PIVOTALLY SUPPORTED IN THE VALVE CHAMBER FOR CONTROLLING THE FLOW OF GAS TO THE APPARATUS BEING WORKED UPON. A FLEXIBLE DIAPHRAGM FORMS ONE WALL OF THE VALVE CHAMBER AND THE GLASSBLOWER&#39;&#39;S MOUTH PIECE IS PLACED IN COMMUNICATION WITH THE SIDE OF THE DIAPHRAGM OPPOSITE TO THE VALVE CHAMBER FOR FLEXING THE DIAPHRAGM WHEN THE GLASSBLOWER BLOWS OR SUCKS ON THE MOUTH PIECE. A LEVER SYSTEM PROVIDING A MECHANICAL ADVANTAGE CONNECTS THE DIAPHRAGM TO THE VALVE MEMBER. AN ADJUSTABLE SPRING IS DISCLOSED FOR URGING THE VALVE MEMBER CLOSED. A RELIEF VALVE FOR THE VALVE CHAMBER IS ALSO DISCLOSED.

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. lThe abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may he purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED FEBRUARY 23, 1971 T883,025 CONTROLLER FOR GLASSBLOWING George J. Hanggi, 1605 Trio Lane, and Harry L. Mussett, 427 Drake, both of Ponca City, Okla. 74601 Filed Apr. 6, 1970, Ser. No. 25,803 Int. Cl. F16k 31/165 US. Cl. 137--495 1 Sheet Drawing. 12 Pages Specification Apparatus for controlling the gas supplied for glassblowing, wherein the glassblower is isolated from the glass apparatus being worked upon, particularly useful when working upon a glass apparatus containing a toxic product. The apparatus includes a valve chamber connected to a pressurized gas supply and the apparatus being worked upon, and a valve member pivotally supported in the valve chamber for controlling the flow of gas to the apparatus being worked upon. A flexible diaphragm forms one wall of the valve chamber and the glassblowers mouth piece is placed in communication with the side of the diaphragm opposite to the valve chamber for flexing the diaphragm when the glassblower blows or sucks on the mouth piece. A lever system providing a mechanical advantage connects the diaphragm to the valve member. An adjustable spring is disclosed for urging the valve member closed. A relief valve for the valve chamber is also disclosed.

Feb. 23, 1971 G. J. HANGGI ETAL CONTROLLER FOR GLASSBLOWING Filed April 6, 1970 42- Ida-Z: 45 I 

